<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div{
            width:100px;
            height: 60px;
            border:1px solid red;
            text-align: center;
            line-height: 60px;
        }
    </style>
</head>
<body>
    welcome to success
    <div>我</div>
</body>
</html>